<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="lib/vue-2.4.0.js"></script>
    <style type="text/css">
        .tab ul {
            overflow: hidden;
            padding: 0;
            margin: 0;
        }
        .tab ul li {
            box-sizing: border-box;
            padding: 0;
            float: left;
            width: 100px;
            height: 45px;
            line-height: 45px;
            list-style: none;
            text-align: center;
            border-top: 1px solid blue;
            border-right: 1px solid blue;
            cursor:pointer;
        }
        .tab ul li:first-child {
            border-left: 1px solid blue;
        }
        .tab ul li.active {
            background-color: orange;
        }
        .tab div {
            width: 500px;
            height: 300px;
            display: none;
            text-align: center;
            font-size: 30px;
            line-height: 300px;
            border: 1px solid blue;
            border-top: 0px;
        }
        .tab div.current {
            display: block;
        }
    </style>
</head>
<body>
<div id="app">
    <div class="tab">
        <ul>
            <li @click="handle(index)" :class="currentIndex===index ? 'active' : '' " :key="item.id" v-for="(item,index) in lists">
                {{item.title}}
            </li>
        </ul>
        <div :class="currentIndex===index ? 'current' : '' " v-for="(item,index) in lists" :key="item.id">
            <img :src="item.path" alt="">
        </div>
    </div>
</div>
<script>
    var vm =new Vue({
        el:'#app',
        data:{
            currentIndex:0,
            lists:[
                {
                    id:1,
                    title:'apple',
                    path:'img/apple.png'
                },{
                    id:2,
                    title:'orange',
                    path:'img/orange.png'
                },{
                    id:3,
                    title:'lemon',
                    path:'img/lemon.png'
                },
            ]
        },
        methods:{
            handle(i){
                this.currentIndex=i
            }
        }
    })
</script>
</body>
</html>
